<?php
# MantisBT - A PHP based bugtracking system

# MantisBT is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# MantisBT is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with MantisBT.  If not, see <http://www.gnu.org/licenses/>.

/**
 * A webservice interface to Mantis Bug Tracker
 *
 * @package MantisBT
 * @copyright Copyright MantisBT Team - mantisbt-dev@lists.sourceforge.net
 * @link http://www.mantisbt.org
 */

/**
 * A middleware class that handles checks for REST API being enabled.
 */
class ApiEnabledMiddleware
{
    public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, callable $next)
    {
        $t_force_enable = $request->getAttribute(ATTRIBUTE_FORCE_API_ENABLED);

        # If request is coming from UI, then force enable will be true, hence, request shouldn't be blocked
        # even if API is disabled.
        if (!$t_force_enable) {
            if (config_get('webservice_rest_enabled') == OFF) {
                return $response->withStatus(HTTP_STATUS_UNAVAILABLE, 'API disabled');
            }
        }

        return $next($request, $response);
    }
}
